Study Assesses Performance of DTC Teledermatology

A study that used fake patients to assess the performance of direct-to-consumer teledermatology websites suggests that incorrect diagnoses were made, treatment recommendations sometimes contradicted guidelines, and prescriptions frequently lacked disclosure about possible adverse effects and pregnancy risks, according to an article published online by JAMA Dermatology.

Direct-to-consumer teledermatology (DTC) is rapidly expanding and large DTC services are contracting with major health plans to provide telecare. However, relatively little is known about the quality of these services.

Jack S. Resneck, Jr., M.D., of the University of California, San Francisco, and coauthors used study personnel posing as patients to submit six dermatologic cases with photographs, including neoplastic, inflammatory and infectious conditions, to regional and national DTC telemedicine websites and smartphone apps offering services to California residents. The photographs were mostly obtained from publicly available online image search engines. Study patients claimed to be uninsured and paid fees using Visa gift debit cards; no study personnel provided any false government-issued identification cards or numbers.

The authors received responses from 16 DTC websites for 62 clinical encounters over about a month from February to March 2016.

The authors report:

None of the websites asked for identification or raised concern about pseudonym use or falsified photographsDuring 68 percent of encounters, patients were assigned a clinician without any choice; 26 percent disclosed information about clinician licensure; and some used internationally based physicians without California licenses23 percent collected the name of an existing primary care physicians and 10 percent offered to send recordsA diagnosis or a likely diagnoses was given in 77 percent of cases; prescriptions were ordered in 65 percent of these cases; and relevant adverse effects or pregnancy risks were disclosed in a minority of thoseThe websites made several correct diagnoses in cases where photographs alone were adequate but when additional history was needed they often failed to ask simple, relevant questionsMajor diagnoses were missed including secondary syphilis, eczema herpeticum, gram-negative folliculitis and polycystic ovarian syndromeTreatments prescribed were sometimes at odds with guidelinesA significant limitation to this study is that the authors were unable to assess whether clinicians seeing these patients in traditional in-person encounters would have performed any better.

The authors offer a series of recommended practices for DTC telemedicine websites, including obtaining proof of patient identity, collecting relevant medical history, seeking laboratory tests when an in-person physician would have relied on that information, having relationships with local physicians in all the areas where they treat patients, and creating quality assurance programs.

“Telemedicine has potential to expand access, and the medical literature is filled with examples of telehealth systems providing quality care. Our findings, however, raise doubts about the quality of skin disease diagnosis and treatment being provided by a variety of DTC telemedicine websites and apps. … We believe that DTC telemedicine can be used effectively, but it is best performed by physicians and team members who are part of practices or regional systems in which patients already receive care,” the authors conclude.

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